Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1992-7-16
pubmed:abstractText
The effects of centrifugal afferents on membrane potentials of identified granule cell layer using evoked field potential profiles, and trans-synaptic activation via antidromic stimulation of output cell axon collaterals. Intracellular recordings maintained for 4-30 min showed complex spontaneous spike discharges and allowed characterization of the cell's input resistance, and on some occasions its morphology following intracellular injection of Lucifer Yellow. Stimulation in the nucleus of the horizontal limb of the diagonal band, but not surrounding regions, produced hyperpolarizing responses in 13 of 27 cells in the granule cell layer; four of these were morphologically identified as granule cells of two types, in five the responses had reversal potentials more negative than the resting potential, and six were identified as granule cells by monosynaptic activation from output axon collaterals. A different set of three cells in the granule cell layer responded with depolarization. The results are consistent with the inhibition of tonic activity of granule cells by the nucleus of the horizontal limb of the diagonal band, leading to disinhibition of mitral and tufted cells via dendrodendritic synapses of granule cells on mitral/tufted cell secondary dendrites.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:issn
0306-4522
pubmed:author
pubmed:issnType
Print
pubmed:volume
48
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
363-9
pubmed:dateRevised
2003-11-14
pubmed:meshHeading
pubmed:year
1992
pubmed:articleTitle
Intracellular responses of olfactory bulb granule cells to stimulating the horizontal diagonal band nucleus.
pubmed:affiliation
Department of Physiology, University of Melbourne, Parkville, Victoria, Australia.
pubmed:publicationType
Journal Article